Syringe for treating facial wrinkles and operation method using the same

ABSTRACT

The present invention relates to a syringe for treating facial wrinkles having a syringe cylinder, a needle body detachably mounted at the front end portion of the syringe cylinder and having a syringe needle disposed thereon, and a piston rod disposed inside the syringe cylinder for operating a piston, the syringe including: the syringe cylinder formed of a substantially thin tube having an inside diameter in a range of 2.0 mm to 7.0 mm; and an inflow check valve disposed at one side of the front end portion of the syringe cylinder so as to supply a predetermined quantity of gas to the interior of the syringe cylinder, wherein the predetermined quantity of gas supplied through the inflow check valve to the interior of the syringe cylinder and a predetermined quantity of liquid filled into the syringe cylinder are injected in turn into the dermis of the skin, which is repeatedly carried out.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a syringe for treating facial wrinklesand an operation method using the syringe, and more particularly, to asyringe for treating facial wrinkles and an operation method using thesyringe wherein a desired quantity of gas is first injected into a layerof skin (which is hereinafter referred to as ‘dermis’) between theepidermis and the subcutaneous tissues, without giving any injury to theepidermis, and a desired quantity of liquid is then injected into thespace of the dermis expanded easily by the injected gas, which isrepeatedly carried out.

2. Background of the Related Art

Generally, the dermis is located between the epidermis and thesubcutaneous tissues of the skin of the vertebrate, which is formed fromthe mesoderm and is composed of fibrous connective tissues having athickness of 0.3 mm to 2.4 mm. The dermis includes sweat glands, hairfollicles, sebaceous glands and the like, from which all of thebiological functions of the skin occur.

As a conventional method for treating facial wrinkles, there has beenprovided a dermal rejuvenation method that allows the epidermis of thefacial skin covering the dermis to be injured so as to perform thedermal rejuvenation, which includes mechanical dermabrasion, laserpeeling, chemical peeling, cryosurgery and the like. However, thesemethods have the following disadvantages: firstly, a period of timerequired for treatment and recovery is relatively long (for example,about 1 to 2 years); secondly, in case of people of color, especially,hyperpigmentation and hypopigmentation may be found on them; and lastly,it is hard to easily select these treatment methods because ofcomplication like the formation of severe irregular scars.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made in view of theabove-mentioned problems occurring in the prior art, and it is an objectof the present invention to provide a syringe for treating facialwrinkles wherein a desired quantity of gas is first injected into thedermis of the facial skin and a desired quantity of liquid is theninjected into the dermis of the facial skin expanded easily by theinjected gas, which is repeatedly carried out.

To accomplish the above object, according to an aspect of the presentinvention, there is provided a syringe for treating facial wrinkleshaving a syringe cylinder, a needle body detachably mounted at the frontend portion of the syringe cylinder and having a syringe needle disposedthereon, and a piston rod disposed inside the syringe cylinder foroperating a piston, the syringe including: the syringe cylinder formedof a substantially thin tube having an inside diameter in a range of 2.0mm to 7.0 mm; and an inflow check valve disposed at one side of thefront end portion of the syringe cylinder so as to supply apredetermined quantity of gas to the interior of the syringe cylinder,wherein the predetermined quantity of gas supplied through the inflowcheck valve to the interior of the syringe cylinder and a predeterminedquantity of liquid filled into the syringe cylinder are injected in turninto the dermis of the skin, which is repeatedly carried out.

According to the present invention, preferably, the syringe for treatingfacial wrinkles further includes an outflow check valve disposed betweenthe front end portion of the syringe cylinder and the needle body.

According to the present invention, preferably, the syringe cylinder hasanother syringe cylinder disposed integrally around the lower peripherythereof in such a manner as to have a larger inside diameter than thesyringe cylinder.

To accomplish the above object, according to another aspect of thepresent invention, there is provided a syringe for treating facialwrinkles having a syringe cylinder, a needle body detachably mounted atthe front end portion of the syringe cylinder and having a syringeneedle disposed thereon, and a piston rod disposed inside the syringecylinder for operating a piston, the syringe including: the needle bodyhaving an inside diameter in a range of 2.0 mm to 7.0 mm; and an inflowcheck valve disposed at one side of the needle body so as to supply apredetermined quantity of gas to the interior of the needle body,wherein the predetermined quantity of gas supplied through the inflowcheck valve to the interior of the needle body and a predeterminedquantity of liquid filled into the syringe cylinder are injected in turninto the dermis of the skin, which is repeatedly carried out.

To accomplish the above object, according to still another aspect of thepresent invention, there is provided an operation method using a syringeincluding the steps of: injecting gas into the lower dermis and thereticular layer in the lower dermis giving important influences on skinelasticity and wrinkles and forming an expanded space thereinto throughthe large penetration of the gas into the skin tissues, thereby inducingfirst collagen regeneration through the injury of the skin tissuescaused during the diffusion of the gas; inducing chemical injury throughthe difference between the pH (in case of CO₂, pH2 to pH3, and in caseof NH₃, pH11 to pH12) of the injected gas and the pH (about 7.4) of anormal body fluid, thereby inducing second collagen regeneration;filling hyaluronic acid into the expanded space to add the hyaluronicacid needed on the aged dermis, thereby obtaining third collagenregeneration, whereby the three-time tissue regeneration is continuouslyperformed at a time.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the presentinvention will be apparent from the following detailed description ofthe preferred embodiments of the invention in conjunction with theaccompanying drawings, in which:

FIG. 1 is a side view showing a syringe for treating facial wrinklesaccording to a first embodiment of the present invention;

FIG. 2 is a side view showing a syringe for treating facial wrinklesaccording to a second embodiment of the present invention;

FIG. 3 is a side view showing a syringe for treating facial wrinklesaccording to a third embodiment of the present invention;

FIG. 4 is a side view showing a syringe for treating facial wrinklesaccording to a fourth embodiment of the present invention;

FIG. 5 is a sectional view showing an outflow check valve in the syringefor treating facial wrinkles according to the present invention;

FIG. 6 is a sectional view showing an inflow check valve in the syringefor treating facial wrinkles according to the present invention;

FIG. 7 is a sectional view showing a needle body in a syringe fortreating facial wrinkles according to a fifth embodiment of the presentinvention; and

FIG. 8 is a sectional view showing a needle body in a syringe fortreating facial wrinkles according to a sixth embodiment of the presentinvention.

FIG. 9 is a photograph showing glabella winkle before operation.

FIG. 10 is a photograph showing glabella winkle after operation of thepresent invention.

FIG. 11 is a photograph showing winkle of left cheek around oralcommissure before operation.

FIG. 12 is a photograph showing winkle of left cheek around oralcommissure after operation of the present invention.

FIG. 13 is a photograph showing winkle of upper lip before operation.

FIG. 14 is a photograph showing winkle of upper lip after operation ofthe present invention.

FIG. 15 is a photograph showing mentum winkle of mandible body areabefore operation.

FIG. 16 is a photograph showing mentum winkle of mandible body areaafter operation of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Injecting gas like carbonic acid gas or ammonia causes the dermis to bepartially isolated and injured, which allows the injection of a liquidinto the dermis to be easier and also enables the partial isolation ofthe dermis to be carried out in a more expanded range. In this case,fibrin is formed on the region where the dermis is injured, such thatthe skin becomes thick, contracted and aged, and thus, the aged skinhaving low elasticity and the dermis having a low thickness can berejuvenated.

Especially, carbonic acid gas (CO₂) is combined with water in the humanbody to form carbonic acid and exhibit a mildly acidic property of aboutpH3, as shown in the following chemical equation.CO₂+H₂O→H₂CO₃

H⁺+HCO₃ ⁻

In the meantime, ammonia responds to water to form ammonium hydroxideand is dissociated to form hydroxyl group, thereby exhibiting a mildlyalkaline property of about pH11, as shown in the following chemicalequation.NH₃+H₂O→NH₄OH

NH₄ ⁺+OH⁻

The mild acid or mild alkali liquid formed by the injection of thecarbonic acid gas or ammonia enables the tissues in the space of thepartially isolated dermis to be stimulated to cause light chemical burnthereon, thereby obtaining more excellent effects in the rejuvenation ofthe collagen fibers of the dermis.

Then, if water, hyaluronic acid dissolved into water, or an aqueoussolution of collagen is injected into the dermis, the dermis becomesthick, such that the isolated space is maintained for a long period oftime by means of the injected gas. Further, the secretion of body fluidsbecomes accelerated and the production of fibers becomes dynamicallyinduced, thereby removing wrinkles on the skin and giving elasticity onthe skin. Also, the injection of carbonic acid gas (CO₂) provides skinwhitening effects.

In the above-mentioned processes, the gas is injected into the dermisand the liquid should be injected into the same position as where thegas is injected. At the time of injection, a syringe should be erectedon the skin, and if a piston rod is moved backwardly from the syringeinto which the liquid is filled, gas is supplied to the interior of asyringe cylinder. At this time, if the syringe is erected, the gas islight and rises over the liquid, thereby causing reverse flow therein.Before the injection of the liquid, accordingly, the gas cannot be firstinjected with existing syringes.

The present inventor has made various studies to solve the above problemand as a result, he has found that if the syringe cylinder of thesyringe has an inside diameter of less than 7.0 mm, gas is suppliedbelow a liquid filled into the syringe cylinder by means of the surfacetense of the liquid, and thus, even if the syringe is erected, the gasdoes not rise over the liquid and still remains below the liquid,thereby preventing the reverse flow of the gas. The smaller the insidediameter of the syringe cylinder of the syringe becomes, the better theabove-mentioned effect becomes. If the inside diameter of the syringecylinder is too small, quantities of liquid and gas to be injectedbecome reduced. Accordingly, it is desirable that the inside diameter ofthe syringe cylinder is in a range of 2.0 mm to 7.0 mm.

Next, an explanation on a syringe for treating facial wrinkles accordingto preferred embodiments of the present invention will be in detailgiven with reference to the attached drawings.

FIG. 1 is a side view showing a syringe for treating facial wrinklesaccording to a first embodiment of the present invention, wherein a body101 of the syringe for treating facial wrinkles includes a syringecylinder 110 formed of a substantially thin tube having an insidediameter in a range of 2.0 mm to 7.0 mm, a needle body 140 detachablymounted on the front end portion of the syringe cylinder 110 and havinga syringe needle 141 disposed thereon, a piston rod 115 disposed in theinterior of the syringe cylinder 110 for operating a piston 114, and aninflow check valve 120 disposed at one side of the front end portion ofthe syringe cylinder 110 and connected to a gas supply 119. The inflowcheck valve 120, which is adopted in the present invention, is wellknown to those skilled in the art.

FIG. 2 is a side view showing a syringe for treating facial wrinklesaccording to a second embodiment of the present invention, wherein abody 100 of the syringe for treating facial wrinkles includes a syringecylinder 110 formed of a substantially thin tube having an insidediameter in a range of 2.0 mm to 7.0 mm, a needle body 140 having asyringe needle 141 disposed thereon, an outflow check valve 130 disposedbetween the front end portion of the syringe cylinder 110 and the needlebody 140, a piston rod 115 disposed in the interior of the syringecylinder 110 for operating a piston 114, and an inflow check valve 120disposed at one side of the front end portion of the syringe cylinder110.

FIG. 3 is a side view showing a syringe for treating facial wrinklesaccording to a third embodiment of the present invention, wherein a body103 of the syringe for treating facial wrinkles includes a syringecylinder 1101 having a first syringe cylinder 1103 formed of asubstantially thin tube having an inside diameter in a range of 2.0 mmto 7.0 mm and a second syringe cylinder 1102 like a typical syringecylinder having a relatively large inside diameter and formed integrallyto the first syringe cylinder 1103 in such a manner as to be disposedconcentrically above the outer periphery of the first syringe cylinder1103, a needle body 140 detachably mounted on the front end portion ofthe first syringe cylinder 1103 and having a syringe needle 141 disposedthereon, a piston rod 115 disposed in the interior of the second syringecylinder 1102 for operating a piston 114, and an inflow check valve 120disposed at one side of the front end portion of the first syringecylinder 1103.

FIG. 4 is a side view showing a syringe for treating facial wrinklesaccording to a fourth embodiment of the present invention, wherein abody 102 of the syringe for treating facial wrinkles includes a syringecylinder 1101 having a first syringe cylinder 1103 formed of asubstantially thin tube having an inside diameter in a range of 2.0 mmto 7.0 mm and a second syringe cylinder 1102 like a typical syringecylinder having a relatively large inside diameter and formed integrallyto the first syringe cylinder 1103 in such a manner as to be disposedconcentrically above the outer periphery of the first syringe cylinder1103, an outflow check valve 130 disposed between the front end portionof the first syringe cylinder 1103 and a needle body 140, a piston rod115 disposed in the interior of the second syringe cylinder 1102 foroperating a piston 114, and an inflow check valve 120 disposed at oneside of the front end portion of the first syringe cylinder 1103.

As shown in FIG. 6, the inflow check valve 120 is disposed on aconnection tube 112 located perpendicularly to one side of the front endportion of the syringe cylinder 110 or the first syringe cylinder 1103and includes a connection portion 127 coupled to the connection tube112, a housing 121, and an inflow tube 125 sequentially locatedconcentrically with respect to one another.

The housing 121 has a receiving space 122 formed therein, and thereceiving space 122 has a spring 124 and a valve 123 mounted therein.The inflow tube 125 has an inflow passageway 126 formed along the centerthereof, and the valve 123 serves to block the inflow passageway 126 ofthe inflow tube 125 by means of the elasticity of the spring 124.

As shown in FIG. 5, the outflow check valve 130 is disposed on aconnection tube 111 located concentrically at the front end portion ofthe syringe cylinder 110 or the first syringe cylinder 1103 and includesa discharge tube 135 coupled to the connection tube 111, a housing 131,and a connection portion 137 sequentially located concentrically to oneanother.

The housing 131 has a receiving space 132 formed therein, and thereceiving space 132 has a spring 134 and a valve 133 mounted therein.The discharge tube 135 has a discharge passageway 136 formed along thecenter thereof, and the valve 133 serves to block the dischargepassageway 136 of the discharge tube 135 by means of the elasticity ofthe spring 134.

The connection portion 137 is coupled along the inner periphery thereofconcentrically to the lower portion of a syringe needle-mounting tube142, and the needle body 140 having the syringe needle 141 disposedthereon is coupled to the upper portion of the syringe needle-mountingtube 142.

FIG. 7 is a sectional view showing a needle body in a syringe fortreating facial wrinkles according to a fifth embodiment of the presentinvention, wherein a needle body 1402 has an inflow check valve 120disposed at one side thereof and an inside diameter in a range of 2.0 mmto 7.0 mm, thereby performing the functions of the syringe cylinder asmentioned above.

In this case, the inflow check valve 120 is disposed on a connectiontube 142 located perpendicularly to one side of the needle body 1402 andincludes the connection portion 127 coupled to the connection tube 142,the housing 121, and the inflow tube 125 sequentially locatedconcentrically with respect to one another.

The housing 121 has the receiving space 122 formed therein, and thereceiving space 122 has the spring 124 and the valve 123 mountedtherein. The inflow tube 125 has the inflow passageway 126 formed alongthe center thereof, and the valve 123 serves to block the inflowpassageway 126 of the inflow tube 125 by means of the elasticity of thespring 124.

FIG. 8 is a sectional view showing a needle body in a syringe fortreating facial wrinkles according to a sixth embodiment of the presentinvention, wherein a needle body 1401 has the receiving space 132 formedat the front end portion thereof, and the receiving space 132 has thespring 134 and the valve 133 mounted therein. The valve 133 blocks thepassageway formed between the interior of the needle body 1401 and thesyringe needle 141 by means of the elasticity of the spring 134.

The syringe cylinders of the syringe of the present invention may havegraduations for indicating quantities of gas or liquid thereon, therebymeasuring the quantity of gas or liquid to be injected into the dermis.

Hereinafter, an explanation on the operation methods using the syringesfor treating facial wrinkles according to the preferred embodiments ofthe present invention will be given.

Firstly, according to the first embodiment of the present invention asshown in FIG. 1, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) filling a predeterminedquantity of liquid into the syringe cylinder 110; b) putting the syringeneedle 141 into the dermis of the skin; c) pulling the piston rod 115 toallow a desired quantity of gas to be supplied to the interior of thesyringe cylinder 110 through the inflow passageway 126 of the inflowtube 125, such that the desired quantity of gas exists in the front endportion of the syringe cylinder 110 and the liquid filled into thesyringe cylinder 110 is placed below the desired quantity of gas; and d)pushing the piston rod 115 to first inject the desired quantity of gasinto the dermis and to then inject a desired quantity of liquid into thedermis, wherein the steps c) and d) are repeatedly carried out to allowthe gas and liquid to be injected by desired quantities in turn into thedermis.

Secondly, according to the second embodiment of the present invention asshown in FIG. 2, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) filling a predeterminedquantity of liquid into the syringe cylinder 110; b) putting the syringeneedle 141 into the dermis of the skin; c) pulling the piston rod 115 toallow a desired quantity of gas to be supplied to the interior of thesyringe cylinder 110 through the inflow passageway 126 of the inflowtube 125, such that the desired quantity of gas exists in the front endportion of the syringe cylinder 110 and the liquid filled into thesyringe cylinder 110 is placed below the desired quantity of gas; and d)pushing the piston rod 115 to first inject the desired quantity of gasinto the dermis through the outflow check valve 130 and the syringeneedle 141 and to then inject a desired quantity of liquid into thedermis through the outflow check valve 130 and the syringe needle 141,wherein the steps c) and d) are repeatedly carried out to allow the gasand liquid to be injected by desired quantities in turn into the dermis.

Thirdly, according to the third embodiment of the present invention asshown in FIG. 3, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) filling a predeterminedquantity of liquid into the syringe cylinder 1101; b) putting thesyringe needle 141 into the dermis of the skin; c) pulling the pistonrod 115 to allow a desired quantity of gas to be supplied to theinterior of the first syringe cylinder 1103 through the inflowpassageway 126 of the inflow tube 125, such that the desired quantity ofgas exists in the front end portion of the first syringe cylinder 1103and the liquid filled into the syringe cylinder 1101 is placed below thedesired quantity of gas; and d) pushing the piston rod 115 to firstinject the desired quantity of gas into the dermis and to then inject adesired quantity of liquid into the dermis, wherein the steps c) and d)are repeatedly carried out to allow the gas and liquid to be injected bydesired quantities in turn into the dermis.

Fourthly, according to the fourth embodiment of the present invention asshown in FIG. 4, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) filling a predeterminedquantity of liquid into the syringe cylinder 1101; b) putting thesyringe needle 141 into the dermis of the skin; c) pulling the pistonrod 115 to allow a desired quantity of gas to be supplied to theinterior of the first syringe cylinder 1103 through the inflowpassageway 126 of the inflow tube 125, such that the desired quantity ofgas exists in the front end portion of the first syringe cylinder 1103and the liquid filled into the syringe cylinder 1101 is placed below thedesired quantity of gas; and d) pushing the piston rod 115 to firstinject the desired quantity of gas into the dermis through the outflowcheck valve 130 and the syringe needle 141 and to then inject a desiredquantity of liquid into the dermis through the outflow check valve 130and the syringe needle 141, wherein the steps c) and d) are repeatedlycarried out to allow the gas and liquid to be injected by desiredquantities in turn into the dermis.

Fifthly, according to the fifth embodiment of the present invention asshown in FIG. 7, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) coupling the needle body 1402to the connection tube 111 of the syringe cylinder 110 or 1101; b)filling a predetermined quantity of liquid into the syringe cylinder 110or 1101; c) putting the syringe needle 141 into the dermis of the skin;d) pulling the piston rod 115 to allow a desired quantity of gas to besupplied to the interior of the needle body 1402 through the inflowpassageway 126 of the inflow tube 125, such that the desired quantity ofgas exists in the interior of the needle body 1402 and the liquid filledinto the syringe cylinder 110 or 1101 is placed below the desiredquantity of gas; and e) pushing the piston rod 115 to first inject thedesired quantity of gas into the dermis and to then inject a desiredquantity of liquid into the dermis, wherein the steps d) and e) arerepeatedly carried out to allow the gas and liquid to be injected bydesired quantities in turn into the dermis.

Sixthly, according to the sixth embodiment of the present invention asshown in FIG. 8, an operation method using the syringe for treatingfacial wrinkles includes the steps of: a) coupling the needle body 1402to the connection tube 111 of the syringe cylinder 110 or 1101; b)filling a predetermined quantity of liquid into the syringe cylinder 110or 1101; c) putting the syringe needle 141 into the dermis of the skin;d) pulling the piston rod 115 to allow a desired quantity of gas to besupplied to the interior of the needle body 1402 through the inflowpassageway 126 of the inflow tube 125, such that the desired quantity ofgas exists in the interior of the needle body 1402 and the liquid filledinto the syringe cylinder 110 or 1101 is placed below the desiredquantity of gas; and e) pushing the piston rod 115 to first inject thedesired quantity of gas into the dermis through the outflow check valve130 and the syringe needle 141 and to then inject a desired quantity ofliquid into the dermis through the outflow check valve 130 and thesyringe needle 141, wherein the steps d) and e) are repeatedly carriedout to allow the gas and liquid to be injected by desired quantities inturn into the dermis.

Reference numerals 113 and 116, which have not been explained yet,denote a syringe cylinder flange and a rod flange.

As set forth in the foregoing, there is provided the syringe fortreating facial wrinkles and the operation method using the syringewherein a desired quantity of gas supplied through the inflow checkvalve to the interior of the needle body and a predetermined quantity ofliquid filled into the syringe cylinder are injected in turn into thedermis of the skin, such that the three-time tissue regeneration iscontinuously performed at a time.

The present invention also provides an operation method by using thesyringe of the present invention as described in the above detaileddescription.

While the present invention has been described with reference to theparticular illustrative embodiments, it is not to be restricted by theembodiments but only by the appended claims. It is to be appreciatedthat those skilled in the art can change or modify the embodimentswithout departing from the scope and spirit of the present invention.

The effects of performed with the present syringe are shown in the FIGS.9-16.

What is claimed is:
 1. A syringe for treating facial wrinkles having asyringe cylinder, a needle body detachably mounted at the front endportion of the syringe cylinder and having a syringe needle disposedthereon, and a piston rod disposed inside the syringe cylinder foroperating a piston, the syringe comprising: the syringe cylinder formedof a substantially thin tube having an inside diameter in a range of 2.0mm to 7.0 mm and containing a predetermined quantity of liquid; and aninflow check valve disposed at one side of the front end portion of thesyringe cylinder connected to a gas supply for supplying a predeterminedquantity of gas to the interior of the syringe cylinder, wherein duringmovement of the piston through the syringe cylinder, the syringe isconfigured to inject the predetermined quantity of gas supplied from thegas supply through the inflow check valve into the dermis of the skinbefore the predetermined quantity of liquid filled into the syringecylinder is injected into the dermis of the skin, and wherein thesyringe is configured so that movement of the piston through the syringecylinder is repeatedly carried out.
 2. The syringe for treating facialwrinkles according to claim 1, further comprising an outflow check valvedisposed between the front end portion of the syringe cylinder and theneedle body.
 3. The syringe for treating facial wrinkles according toclaim 1, wherein the syringe cylinder has another syringe cylinderdisposed integrally around an outer periphery thereof in such a manneras to have a larger inside diameter than the syringe cylinder.
 4. Thesyringe for treating facial wrinkles according to claim 2, wherein thesyringe cylinder has another syringe cylinder disposed integrally aroundan outer periphery thereof in such a manner as to have a larger insidediameter than the syringe cylinder.
 5. The syringe for treating facialwrinkles according to claim 1, wherein the gas supplied by the gassupply comprises at least one selected from a group consisting ofcarbonic acid gas and ammonia gas.